Method and device for liner system

Details Method and device for liner system Method and device for liner system

2008-05-06

2008-05-06

Zeender, F. (Department: 3627)

Boring or penetrating the earth

Boring a submerged formation

Boring from floating support with submerged independent...

C166S358000, C166S367000, C166S380000, C166S382000

Reexamination Certificate

active

10507049

ABSTRACT:
Method for drilling and lining a well wherein at least one liner (1, 2, 32) with a larger external diameter than the substantial part of a drilling riser (10) is pre-installed at a point below the substantial part of the drilling riser (10). A bore hole section (21) is drilled after the drilling riser (10) has been installed, the bore hole section having a larger diameter than the at least one pre-installed liner (1, 2, 32). The at least one pre-installed liner (1, 2, 32) is subsequently lowered into the bore hole section (21, 22). A drilling and liner system for implementing the method is also described.

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Norwegian Search Report dated Sep. 2, 2002 of Patent Application No. NO 2002 1179 filed Mar. 8, 2002.

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